{"id":1624,"date":"2020-06-21T18:07:18","date_gmt":"2020-06-21T10:07:18","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1624"},"modified":"2020-06-21T18:07:18","modified_gmt":"2020-06-21T10:07:18","slug":"%e7%ae%a1%e7%90%86%e5%b7%a8%e9%a1%b5%ef%bc%88hugepages%ef%bc%89","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1624","title":{"rendered":"\u7ba1\u7406\u5de8\u9875\uff08HugePages\uff09"},"content":{"rendered":"<h1>\u7ba1\u7406\u5de8\u9875\uff08HugePages\uff09<\/h1>\n<p>\u4f5c\u4e3a&nbsp;GA&nbsp;\u7279\u6027\uff0cKubernetes \u652f\u6301\u5728 Pod \u5e94\u7528\u4e2d\u4f7f\u7528\u9884\u5148\u5206\u914d\u7684\u5de8\u9875\u3002\u672c\u6587\u63cf\u8ff0\u4e86\u7528\u6237\u5982\u4f55\u4f7f\u7528\u5de8\u9875\uff0c\u4ee5\u53ca\u5f53\u524d\u7684\u9650\u5236\u3002<\/p>\n<h2 id=\\\"\u51c6\u5907\u5f00\u59cb\\\">\u51c6\u5907\u5f00\u59cb<\/h2>\n<ol>\n<li>\u4e3a\u4e86\u4f7f\u8282\u70b9\u80fd\u591f\u4e0a\u62a5\u5de8\u9875\u5bb9\u91cf\uff0cKubernetes \u8282\u70b9\u5fc5\u987b\u9884\u5148\u5206\u914d\u5de8\u9875\u3002\u6bcf\u4e2a\u8282\u70b9\u53ea\u80fd\u9884\u5148\u5206\u914d\u4e00\u79cd\u7279\u5b9a\u89c4\u683c\u7684\u5de8\u9875\u3002<\/li>\n<\/ol>\n<p>\u8282\u70b9\u4f1a\u81ea\u52a8\u53d1\u73b0\u5168\u90e8\u5de8\u9875\u8d44\u6e90\uff0c\u5e76\u4f5c\u4e3a\u53ef\u4f9b\u8c03\u5ea6\u7684\u8d44\u6e90\u8fdb\u884c\u4e0a\u62a5\u3002<\/p>\n<h2 id=\\\"api\\\">API<\/h2>\n<p>\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u5728\u5bb9\u5668\u7ea7\u522b\u7684\u8d44\u6e90\u9700\u6c42\u4e2d\u4f7f\u7528\u8d44\u6e90\u540d\u79f0&nbsp;hugepages-&lt;size&gt;&nbsp;\u6765\u4f7f\u7528\u5de8\u9875\uff0c\u5176\u4e2d\u7684 size \u662f\u7279\u5b9a\u8282\u70b9\u4e0a\u652f\u6301\u7684\u4ee5\u6574\u6570\u503c\u8868\u793a\u7684\u6700\u5c0f\u4e8c\u8fdb\u5236\u5355\u4f4d\u3002 \u4f8b\u5982\uff0c\u5982\u679c\u8282\u70b9\u652f\u6301 2048KiB \u7684\u9875\u9762\u89c4\u683c\uff0c \u5b83\u5c06\u66b4\u9732\u53ef\u4f9b\u8c03\u5ea6\u7684\u8d44\u6e90&nbsp;hugepages-2Mi\u3002 \u4e0e CPU \u6216\u5185\u5b58\u4e0d\u540c\uff0c\u5de8\u9875\u4e0d\u652f\u6301\u8fc7\u91cf\u4f7f\u7528\uff08overcommit\uff09\u3002 \u6ce8\u610f\uff0c\u5728\u8bf7\u6c42\u5de8\u9875\u8d44\u6e90\u65f6\uff0c\u8fd8\u5fc5\u987b\u8bf7\u6c42\u5185\u5b58\u6216 CPU \u8d44\u6e90\u3002<\/p>\n<div>\n<pre>apiVersion: v1\nkind: Pod\nmetadata:\n  generateName: hugepages-volume-\nspec:\n  containers:\n  - image: fedora:latest\n    command:\n    - sleep\n    - inf\n    name: example\n    volumeMounts:\n    - mountPath: \/hugepages\n      name: hugepage\n    resources:\n      limits:\n        hugepages-2Mi: 100Mi\n        memory: 100Mi\n      requests:\n        memory: 100Mi\n  volumes:\n  - name: hugepage\n    emptyDir:\n      medium: HugePages\n<\/pre>\n<\/div>\n<ul>\n<li>\u5de8\u9875\u7684\u8d44\u6e90\u8bf7\u6c42\u503c\u5fc5\u987b\u7b49\u4e8e\u5176\u9650\u5236\u503c\u3002\u8be5\u6761\u4ef6\u5728\u6307\u5b9a\u4e86\u8d44\u6e90\u9650\u5236\uff0c\u800c\u6ca1\u6709\u6307\u5b9a\u8bf7\u6c42\u7684\u60c5\u51b5\u4e0b\u9ed8\u8ba4\u6210\u7acb\u3002<\/li>\n<li>\u5de8\u9875\u662f\u88ab\u9694\u79bb\u5728 pod \u4f5c\u7528\u57df\u7684\uff0c\u8ba1\u5212\u5728\u5c06\u6765\u7684\u8fed\u4ee3\u4e2d\u5b9e\u73b0\u5bb9\u5668\u7ea7\u522b\u7684\u9694\u79bb\u3002<\/li>\n<li>\u5de8\u9875\u53ef\u7528\u4e8e EmptyDir \u5377\uff0c\u4e0d\u8fc7 EmptyDir \u5377\u6240\u4f7f\u7528\u7684\u5de8\u9875\u6570\u91cf\u4e0d\u80fd\u591f\u8d85\u51fa Pod \u8bf7\u6c42\u7684\u5de8\u9875\u6570\u91cf\u3002<\/li>\n<li>\u901a\u8fc7\u5e26\u6709&nbsp;SHM_HUGETLB&nbsp;\u7684&nbsp;shmget()&nbsp;\u4f7f\u7528\u5de8\u9875\u7684\u5e94\u7528\uff0c\u5fc5\u987b\u8fd0\u884c\u5728\u4e00\u4e2a\u4e0e&nbsp;proc\/sys\/vm\/hugetlb_shm_group&nbsp;\u5339\u914d\u7684\u8865\u5145\u7ec4\u4e0b\u3002<\/li>\n<li>\u901a\u8fc7 ResourceQuota \u8d44\u6e90\uff0c\u53ef\u4ee5\u4f7f\u7528&nbsp;hugepages-&lt;size&gt;&nbsp;\u6807\u8bb0\u63a7\u5236\u6bcf\u4e2a\u547d\u540d\u7a7a\u95f4\u4e0b\u7684\u5de8\u9875\u4f7f\u7528\u91cf\uff0c \u7c7b\u4f3c\u4e8e\u4f7f\u7528&nbsp;cpu&nbsp;\u6216&nbsp;memory&nbsp;\u6765\u63a7\u5236\u5176\u4ed6\u8ba1\u7b97\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<h2 id=\\\"\u5f85\u5b9e\u73b0\u7684\u7279\u6027\\\">\u5f85\u5b9e\u73b0\u7684\u7279\u6027<\/h2>\n<ul>\n<li>\u5728 pod \u7ea7\u522b\u9694\u79bb\u7684\u57fa\u7840\u4e0a\uff0c\u652f\u6301\u5de8\u9875\u5728\u5bb9\u5668\u7ea7\u522b\u7684\u9694\u79bb\u3002<\/li>\n<li>\u4f5c\u4e3a\u670d\u52a1\u8d28\u91cf\u7279\u6027\uff0c\u4fdd\u8bc1\u5de8\u9875\u7684 NUMA \u5c40\u90e8\u6027\u3002<\/li>\n<li>\u652f\u6301 LimitRange \u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u7ba1\u7406\u5de8\u9875\uff08HugePages\uff09 \u4f5c\u4e3a&nbsp;GA&nbsp;\u7279\u6027\uff0cKubernetes \u652f\u6301\u5728 Pod \u5e94 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1624\"> <span class=\"screen-reader-text\">\u7ba1\u7406\u5de8\u9875\uff08HugePages\uff09<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[104,123],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u7ba1\u7406\u5de8\u9875\uff08HugePages\uff09 \u4f5c\u4e3a&nbsp;GA&nbsp;\u7279\u6027\uff0cKubernetes \u652f\u6301\u5728 Pod \u5e94&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1624"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1624"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1624\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1624"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}